Dark energy
Q: About how much of the universe is believed to be composed of dark energy? O 68-73% O 10-12% O 4-5% O…
A: We know very less about the universe . and said universe is expand . the maximum thing is unknown…
Q: The Centaurus supercluster of galaxies is 52 Mpc from Earth. How long (in years) does it take light…
A: Given that The Centaurus supercluster of galaxies is 52 Mpc from Earth. then we have to determine…
Q: What is the bell jar experiment?
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Q: 3. The sketch to the right shows a proposed "electromagnetic rocket launcher". A metal bar is…
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Q: Define the term 'The Nature of Dark Matter' this term is from physics and how does it work.
A: The term 'The Nature of Dark Matter' refers to the characteristics and properties of a hypothetical…
Q: That is the same thing I was getting but it's saying it is incorrect.
A: Given Data:The length of the side of the cubical box is The number of moles of neon gas is The…
Q: How do we measure Dark Matter?
A: Two methods were used by DES scientists to measure dark matter. Firstly, maps of galaxy positions as…
Q: why does light moving away from us appear redshifted?
A: When light moves away, it appears redshifted.
Q: Complete the ray diagram age from
A: Given data: The object distance is: u =- 30 cm The focal length is: f =-10 cm The image distance…
Q: Why is the discovery of dark matter and dark energy so important to our understanding of the…
A: Dark matter and dark energy are one of the mysteries of the universe that are not fully understood.…
Q: At rest hydrogen has a spectral line at 143 nm if this line is observed at 138nm for the star Sirius…
A: Simple problem from special theory of relativity and specifically it's a problem of Doppler's…
Q: Suppose the temperature of a blackbody increases by 20%. What will happen to the total rate at which…
A: Energy radiated by a blackbody depends on its temperature and the relationship between temperature…
Dark energy is described as
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- The discovery of the dark energy was a surprise because astrophysicists generally assumed that the expansion would be slowing down. Select one: True FalseWhen you look at distant galaxy through a telescope, how is it that you are looking backward in time?How did Edwin Hubble use the concepts of the Doppler Effect to determine the speed/direction of celestial objects?
- Why is dark energy required to explain the universe as we see it today according to the Big Bang model of the universe? 9The presence of dark energy affects to the way the Universe is expanding. Select one: True FalseHow can we determine the existence of something we can't see? What is the evidence of dark matter and dark energy? How can we learn more about this phenomena?